what makes glue to stick two substances ?
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Adhesives contain long chains of protein molecules that bond with the molecules of the surface they are spread upon by entering the pores and spaces of the material. ... When liquid is added to an adhesive, it becomes glue. When the glue dries over a surface, it hardens, causing the molecules to stick together.
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Glues are compounds that are applied as a liquid, paste or putty between two surfaces that are to be held together. As the glue dries and hardens, it bonds the surfaces together. Each type of glue has a characteristic setting time and curing time
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